# Stefan Keller

> Swiss commercial-register person record from Swiss Graph (graph.swiss),
> sourced from the Swiss Official Gazette of Commerce (SHAB/SOGC).
> Canonical profile: https://graph.swiss/people/stefan-keller/760697

## Registry facts

- Residence: Feuerthalen
- Nationality: CH
- Status: active

## Mandates (3)

- Lu-Kuan Art (CHE-176.352.064) — individual signing authority
- LK Art Gate GmbH (CHE-214.655.237) — individual signing authority
- SCHAER PROTON AG in Liquidation (CHE-107.937.776) — limited joint signing authority (any two to sign) (company no longer active)

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Machine-readable variant of https://graph.swiss/people/stefan-keller/760697: registry facts only.
Site overview for agents: https://graph.swiss/llms.txt